Kanggo mbantu sirah sirah metrik metrik metrik metrik sing dhuwur nolak karat sing luwih apik lan katon luwih apik, entuk perawatan permukaan sing beda. Wong-wong sing umum kalebu seng-electroplated seng, kuning, utawa ireng, lan iki menehi perlindungan karat dhasar. Galvanisasi panas dicelup nambah lapisan seng sing kandel, sing bisa ditindakake kanthi apik ing papan sing angel.
Kepala alun-alun metram stainless steel kanthi alami ora dadi karat kanthi gampang. Ana opsi liyane, kaya lapisan fosfat (biasane digunakake ing cat), oksida ireng (sing mbantu katon lan tahan karat cilik), utawa plating mekanik. Siji sing sampeyan pilih gumantung saka pira pangayoman karat sing dibutuhake.
Mon | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1 / 8 | 1-1 / 4 | 1-3 / 8 | 1-1 / 2 |
P | 16 | 24 | 32 | 14 | 20 | 28 | 13 | 20 | 28 | 11 | 18 | 24 | 10 | 16 | 20 | 9 | 14 | 20 | 8 | 12 | 20 | 7 | 12 | 18 | 7 | 12 | 18 | 6 | 12 | 18 | 6 | 12 | 18 |
DS max | 0.388 | 0.452 | 0.515 | 0.642 | 0.768 | 0.895 | 1.022 | 1.149 | 1.277 | 1.404 | 1.531 |
s max | 0.562 | 0.625 | 0.75 | 0.938 | 1.125 | 1.312 | 1.5 | 1.688 | 1.875 | 2.062 | 2.25 |
s min | 0.544 | 0.603 | 0.725 | 0.906 | 1.088 | 1.269 | 1.45 | 1.631 | 1.812 | 1.994 | 2.175 |
lan max | 0.795 | 0.884 | 1.061 | 1.326 | 1.591 | 1.856 | 2.121 | 2.386 | 2.652 | 2.917 | 3.182 |
E min | 0.747 | 0.828 | 0.995 | 1.244 | 1.494 | 1.742 | 1.991 | 2.239 | 2.489 | 2.738 | 2.986 |
k max | 0.268 | 0.316 | 0.348 | 0.444 | 0.524 | 0.62 | 0.684 | 0.78 | 0.876 | 0.94 | 1.036 |
K Min | 0.232 | 0.278 | 0.308 | 0.4 | 0.476 | 0.568 | 0.628 | 0.72 | 0.812 | 0.872 | 0.964 |
r max | 0.03 | 0.03 | 0.03 | 0.06 | 0.06 | 0.06 | 0.09 |
0.09 |
0.09 |
0.09 |
0.09 |
R min | 0.01 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
Efisiensi Kepala Kepala Tinggi Bolts Tindakake standar Metric ISO kaya DIN 478 (benang sebagian) lan DIN 479 (standar lengkap) - standar iki bisa metu kanthi ukuran utama. Ukuran sirah (jembar ing bagean rata) dadi diameter bolt. Contone, bolt m8 biasane duwe sirah 13mm.
Dawane standar saka ukuran skru cekak kanthi pirang-pirang atus milimeter. Utas tindakake standar / m) utawa apik (MF). Yen sampeyan nemtokake bolts kepala alun-alun metrik, sampeyan kudu nyathet diameter (m), pitch (yen perlu), dawa, kelas standar, lan rampung.
P: Kepiye Ukuran minangka Ukuran Harga H Tinggi H Tinggi H Tinggi H Tinggi? Apa dheweke netepi standar IO?
A: Bolts kepala kepala metrik sing dhuwur digawe kanthi watesan ukuran sing ketat, sawise standar iso sing ana sing relevan-biasane 4017. Sing utamane kanggo bolongan hex, nanging kanthi ukuran sirah bisa uga. Iki nggawe manawa jembaré sirah lan dhuwur ora konsisten manawa ukurane, saengga padha karo wrenches lancar lan mlaku lancar nalika ngetrapake barang-barang kanthi lancar